例句與造句

1. Others argue that, in the absence of compulsion, the only way that corporations are able to secure adequate supplies of labour is to offer wages and benefits superior to preexisting options, and that the presence of workers in corporate factories indicates that the factories present options which are seen as better by the workers themselves than the other options available to them ( see principle of revealed preference ).
2. It's difficult to find principle of revealed preference in a sentence. 用principle of revealed preference造句挺難的